I'm currently an engineering manager at Facebook. Before that, I was CTO and Chief Archictect of Pioneer Square Labs. Prior to that I was the entrpreneur in residence with the Allen Institute for Artificial Intelligence.
Before even that, I was senior manager at Apple working on none of your business. Prior to Apple, I was co-founder and CTO of Prismatic.
In a previous life, I was an academic computer scientist in statistical natural language processing and machine learning. Check out my academic papers and vastly out of date CV!